.side-nav__brand {
  background: url('aaa.png') no-repeat left center !important;
  margin-left: 10px;
  height: 40px;
  background-size: contain !important;
}
.side-nav__brand span{
	display: none;
}
.side-nav__brand:after{
	content: "辉哥报告";
	margin-left: 20px;
 
}
/* 全局背景（包括侧边栏） */
body {
  background-color: #8eafe0 !important; /* 浅灰色背景 */
}
